OpenTechnical

OT-2026-000011607

Publication integrity record

Two finger pneumatic gripper, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000011607) never changes.

Identity and time

Publication numberOT-2026-000011607 · never reused
Internal UUID01a0ae6d-193f-7cf0-91de-ca16cbc333c9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011607
StatusPUBLIC

Content hashes

Canonical textd2a2fe6e16788879bbcbd43f9d78a39accde3d82e83d57e86ba65c884ddd513c
Markdowna5f4c7da1ae197b7e2ba74e04f3b528c18cb19ecfbfe5445ea00225c99f959f2
PDF
Publication page4e5a0df4946d8ab6916998ef39179367ea998165a0ed252ed1fd922f6396c19f
Manifest6f4993e6d45794ca3d390de63cdbc03b0427943aa94adead3ea13b05739cf4d8

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature/Guj8eOX515p6W3SiWGGix3QlhuMSWuATL2DP8gg9INpXfS6N/EV20KDT3uGcSQxa73uD3zksEue9QJPxBOiBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:12:09.948131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011607
observed 4e5a0df4946d8ab6916998ef39179367...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:09.929465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011607/manifest.json
observed 6f4993e6d45794ca3d390de63cdbc03b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:09.879764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011607/publication.md
observed a5f4c7da1ae197b7e2ba74e04f3b528c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:09.816345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011607/publication.txt
observed d2a2fe6e16788879bbcbd43f9d78a39a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.